Road chair and clip



Nov. 10, 1931. Q C H, RIBB 1,880,888

ROAD CHAIR AND CLIP Filed June 26, 1930 Patented Nov. l0, 1931 UNITED. STATES PATENT. oFF cE CARL H. RIBB, or WORCESTER, MASsAcHUSnTTS, .ASSIGNOR To PARKER WI E-Goons COMPANY, or WORCESTER, MASSACHUSETTS, A CORPORATION on MASSACHUSETTS ROAD cRAIR Ann CLIP-g Application filed June 26,

This invention relates to devices used in assemblmg reenforcing bars to be used 1n concrete road construction and for other slmilar purposes. 7

which is also effective as a road chair or support, to space the mat a definite distance from the road bed or foundation.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in theappended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a perspective view of my invention applied to a pair of reenforcing bars;

Fig. 2 is a side elevation of the road chair and clip, looking in the direction of the arrow 2 in Fig. 1, and

Figs. 3 and 4 are end elevations of the road chair, lookingin the direction of the arrows 3 and 4 in Fig. 2.

Referring to the drawings, my improved chair and clip is preferably formed from a single piece of relatively heavy wire, transformed by a series of bending and pressing operations to the construction clearly shown in the drawings. One endof the wire is bent to form an upwardly arched portion 10, a downwardly looped transverse portion 11, and an upwardly arched portion 12. The transverse loop 11 is adapted to underlie a lower reenforcing bar B and the upwardly arched portions 10 and 12 are adapted to overlie an upper reenforcing bar B disposed at right angles to the lower bar B.

The upwardly arched portion 10 is joined to a connecting portion or member 15 which extends downward along one side of the lower bar B and has a laterally offset portion 16 underlying the bar B and held yieldingly in engagement therewith by the resilience of the parts and by the conformation of the 1930. Serial No. 464,050.

arched and looped portions 10,11 and 12 which cause the offset portion 16 to be yieldingly pressed upward when the device is in operative position. 7 Beyond the offset portion 16'the wire is bent upward to form a retaining projection orhump' l'? which engages the'side. of the bar Band effectively preventslateral displacement of the device when in use.

rThe free end of the wire is bent downward as indicated at 18 then laterally as indicated at 19, and finally rearwardly as indicated at 20. The parts 19 and 20 lie in a plane substantially parallel to the assembled mat'and provide a firm footing or support by which. the mat is spaced a definite and predetermined distance from the road foundation on which the concrete is to be poured.

It will be noted that the supporting portions 19 and 20' are directly connected by the upright portion 18 to the offset portion 16 which underlies the bar B. Consequently any upward blow or pressure applied to the parts 19 and 20 merely causes the offset portion 16 to more firmly engage the bar B and there is no tendency to displace the device from the bars with which it is assembled.

I have thus provided a combined road chair and clip which can be applied to the reenforcing bars as quickly and easily and by substantiallythe same movements as the ordinary commercial tie clip, and in addition I have provided a device which embodies a spacing member by which the mat will be held elevated at a desired distance above the road foundation.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is I 1. A combined road chair and clip formed from a single piece of wire and comprising an extended resilient connecting portion having at one end spaced upwardly arched portions joined by an outer downwardly extended transverse loop, the other end of said connecting portion being offset laterally to unapplied, and the end of said offset portion being extended downward and offset lateral- 1y to provide an extended footing effective to engage a foundation surface and provide a spacing support.

2. The combination in a road chair and clip as set forth in claim 1, in which an upward projection is provided between the laterally offset portion and the downward projection thereof, said upward projection being effective to engage the side of the lower reenforcing bar and prevent sidewise displacement of said laterally oflset portion relative to said bar.

3. The combination as set forth in claim 1, in which the foundation engaging part is bent laterally in a plane substantially parallel to the plane of the assembled bars.

4. The combination as set forth in claim 1, in which the foundation engaging part is bent laterally in a plane substantially parallel to the plane of the assembled bars and in which portions thereof in said plane are disposed at a substantial angle to each other.

In testimony whereof I have hereunto affixed my signature. 7

CARL H. RIBB.

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